Clean plastic, aluminum and cushions with a combination of 3 tbsp. of laundry detergent to 1 gallon of warm water. Wipe down furniture with a soapy sponge. For tough-to-remove droppings, let the soapy water sit on the furniture for a few minutes and wipe again. Rinse with clean water and allow to dry. Set cushions in a sunny area to dry.
Clean wood and teak furniture with a solution of mild soap and water. Wipe furniture with the soapy water, using a soft scrubber for stubborn droppings and dirt. Rinse the furniture thoroughly and dry with clean towels. Set the furniture in the sun to dry completely. Finish teak furniture with teak oil for a polished look.
Use a 1 cup of ammonia and 1/2 cup of vinegar with 1 gallon of water to clean old, unfinished wood furniture. Scrub the surface with a sponge until clean. Rinse well with cool water. Dry the table with a towel to prevent the wood from absorbing the moisture.
Clean iron furniture with a light mixture of dish soap and warm water. Repeat the process since fly droppings are hard to see on iron furniture. Rinse the iron and dry well to prevent rusting. Seal the finish with a light coat of wax.